1172478425 has 12 divisors (see below), whose sum is σ = 1456410876. Its totient is φ = 936345600.

The previous prime is 1172478379. The next prime is 1172478431. The reversal of 1172478425 is 5248742711.

It can be written as a sum of positive squares in 6 ways, for example, as 283484569 + 888993856 = 16837^2 + 29816^2 .

It is not a de Polignac number, because 1172478425 - 2¹⁴ = 1172462041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26216 + ... + 55065.

It is an arithmetic number, because the mean of its divisors is an integer number (121367573).

Almost surely, 2^1172478425 is an apocalyptic number.

It is an amenable number.

1172478425 is a deficient number, since it is larger than the sum of its proper divisors (283932451).

1172478425 is an equidigital number, since it uses as much as digits as its factorization.

1172478425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81868 (or 81863 counting only the distinct ones).

The product of its digits is 125440, while the sum is 41.

The square root of 1172478425 is about 34241.4722960331. The cubic root of 1172478425 is about 1054.4717599915.

The spelling of 1172478425 in words is "one billion, one hundred seventy-two million, four hundred seventy-eight thousand, four hundred twenty-five".